"Hi. Long time no see. How you doing?" "Hello, i'm good, thanx. How abt you?" "Likewise, thank you.May I ask you smth?" "Sure, what is it? "Do you believe there's some useless knowledge?" "What do you mean?" "Kind of smth you learn but has no real impact on your life except wasting it." "(....) Like what?" "Take the eg: of space aliens. What if the ufo believers or cosmologists get it all wrong from the beginning!" "How so?!!" "Like someone's showing his people the moon but they're all staring at his fingers." "What do you mean!!?" To be continued...